National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Gulfport - Gulfport-Biloxi International Airport (KGPT)

Lat: 30.41°NLon: 89.08°WElev: 26ft.

Overcast

82°F

28°C

Humidity 94%
Wind Speed S 10 G 22 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 80°F (27°C)
Visibility 9.00 mi
Heat Index93°F (34°C)
Last update 18 Jun 11:53 pm CDT
Extended Forecast for

Bay St. Louis MS

Flood Watch June 19, 12:08am until June 19, 07:00am
Heat Advisory June 19, 10:00am until June 19, 07:00pm
Click here for hazard details and duration
Flood Watch
Heat Advisory
  •  
    Flood Watch June 19, 12:08am until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 81 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Heat index values as high as 106. Southwest wind around 10 mph. Chance of precipitation is 30%.

    High: 89 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 79. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 79. South wind around 10 mph. Chance of precipitation is 40%.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 88. South wind 5 to 15 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 82. South wind around 15 mph.

    Low: 82 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89. Southwest wind 10 to 15 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 81. Southwest wind around 15 mph.
Juneteenth
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Heat index values as high as 106. Southwest wind around 10 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 79. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 79. South wind around 10 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 88. South wind 5 to 15 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 82. South wind around 15 mph.
Monday
Mostly sunny, with a high near 89. Southwest wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 81. South wind 10 to 15 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. West wind 5 to 10 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. West wind 5 to 10 mph.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. West wind around 5 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bay St. Louis MS
 30.31°N 89.34°W
Last Update:
10:53 pm CDT Jun 18, 2026
Forecast Valid:
12am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation